Richard lissatjer



: a. (wa

06. COMPOSITIONS,

COATING OR PLASTIC.

PROCESS OF PRODUCING L SPECIFICATION forming part of Letters Applicationfiled November 22, 1895.

To all whom it may concern:

Be it known that I, RICHARD LISSAUER, a subject of the King of Prussia,Emperor of Germany, and a resident of the city of Berlin,

in the Kingdom of Prussia, Germany, have invented certain new and usefulImprovements in Processes of Producing Leather-Like Substances; and I dohereby declare that the following is a full; clear, and exactdescription of the invention, which will enable others skilled in theart to which it appertains to make and use the same. V This inventionrelates to a process for the production of a leather-like substance. ByI 5 this process materials containing cellulose fibers and textilematerials, such as co ton linen and a er may be transformed into asubstance SllIll ar to leather and adapted to be used for the soles ofshoes and for covering floors and stairs.

v The invention consists in the process of thoroughly saturatingmaterials containing cellulose fibers and textile materials with resindissolved in carbon disulfid. v

In carrying out the process materials containing cellulose fibers andtextile materials, such as the waste or cli io s of cotton, aer or lin11 after Being comminuted 5 13 cleansed, are passed into a washing andbeat- 0 ing engine, where they are brought to a pasty mass, which ispoured into forms or molds to form plates or sheets. These are dried andpassed into a solution of ammouiac co er, in which they are allowe toremain until 5 the cellulose constituent parts are to a certain extentin a pasty state, whereupon the plates thus prepared are placed in abath containing albuminates and albuminoids,

such as casein u en, ue or 00 The 40 plates or sheets are left in thebath until they are thoroughly saturated with these stuffs,

said saturation proceeding the more readily owing to the previoustreatment WltllEL-Hkmoniac copper. The plates are then passed 5 into asolutiono f silicate of otassium and after remainingthere a lengt oftim'intda' solution of chlorid of lime. The following process then goeson in the material: From TES PATENT OFFICE.

RICHARD LISSAUER, OF BERLIN, GERMANY.

EATHER-LIKE SUBSTANCES.

Patent No. 586,907, dated July 20, 1897.

Serial No. 569,840. (No specimens.)

the silicate of potassium and the chlorid of lime there is formedsilicate of lime but at the same time this lime com mes 1n quite aphysical way with the absorbed albuminates and albuminoids, joining withthese in the form of grains and at the same time carrying with it thecellulose constituents previously treated with the ammoniac copper. Inthis process a portion of the body of the plates combines mostintimately with the added stulfs and in itself, because a large portionof the interstitial air-spaces of the plates are filled with theinsoluble fixed constituent. parts, which consist partly of organic andpartly of inorganic materials. object of this invention the plates mustbe of different elasticity, so must the processes act on the plates acorrespondingly longer or shorter time. The plates are then dried,passed into a bath of 1': n di lfid in which F resin has been dissoyp anthoroughly sa ura e wit this solution, whereby said '0 plates have givento them the properties and thepaprpearancfimoi leather. The plates areprepared for this saturation by the previous precipitation of theorganic and inorganic stuffs. Finally the plates are again dried andpressed.

What I claim as my invention, and desire to secure by Letters Patent,isp A process for the production of leather-like substances consistingin saturating stuffs or materials containing cellulose fibers, andtextile materials, with ammoniac co per and with albuminous substances,treatiri g he ma terial thus obtained with a solution of silicate ofpotassium and with a solution of chlorid of lime, saturating thismaterial witl 1 a solution of resigi ncarbon disulfid, and then dryingand pressing the material thus produced, substantially as described.

In testimony whereof I sign this specifica- .tion in the presence of twosubscribing witnesses. v RICHARD LISSAUER.

Witnesses TALLI LISSAUER, W. Haurr.

As for the I

